Just tweaked Bucky_Aggressor and there's way too much categorisation! Here's the current listing:
Aggressor | Alternate | Anti-Air | Anti-Ground | Bucky | Consumable | Drop Systems | Missile | Rare | Units | Vehicles
I've already dropped a couple that seemed totally superfluous. Some of these are unique categories - rare and that it's a drop for example, others, the whole tree is included! Unit>Vehicle>Bucky for example. We do have alternate but that seems a catch all for items, pilots and units. Should these be distinguished categorically? And do we really need to know that a unit is anti-ground\infantry\tank? Anti-Air might be justified, not convinced the others are.
Something to worry about when I'm more energetic? :-)